Home / 27,962.72-38,588.40-15,386.72

Finding the Fourth Proportional to 27,962.72, 38,588.40 and 15,386.72

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Solution

The fourth proportional to 27,962.72, 38,588.40 and 15,386.72 is: 21,233.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,962.72 : 38,588.40 = 15,386.72 : x
  2. Step 2: Convert to fraction form
    27,962.72/38,588.40 = 15,386.72/x
  3. Step 3: Cross multiply
    27,962.72x = 38,588.40 × 15,386.72
  4. Step 4: Simplify right side
    27,962.72x = 593,748,906.05
  5. Step 5: Solve for x
    x = 593,748,906.05/27,962.72
  6. Step 6: Final answer
    x = 21,233.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.